Shell liners



FIG. 1 is a front elevational view of the shell liner;

FIG. 2 is a right-side elevational view thereof, the left-side elevational view being a mirror image thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a cross-sectional view thereof taken along line 5-5 in FIG. 1.

The broken lines depict portions of the shell liner that is not claimed and the dot-dash chain line depicts a boundary of the claimed subject matter. The broken lines and dot-dash chain lines form no part of the claimed design. 

CLAIM The ornamental design for a shell liner, as shown and described. 